import cv2
video=cv2.VideoCapture("yzbf.mp4")
while(video.isOpened()):
	retval,image=video.read()
	cv2.namedWindow("Video",0)
	cv2.resizeWindow("Video",420,300)
	if retval==True:
		cv2.imshow("Video",image)
	else:
		break
	key=cv2.waitKey(1)
	if key==27:
		break
video.release()
cv2.destroyAllWindows()